Array has incomplete element type. What does this mean? [duplicate]
问题 This question already has answers here : Why do we need to specify the column size when passing a 2D array as a parameter? (6 answers) Closed 5 months ago . I want to create an array that has that stores the multiplication values of any integer n. After that, I would like to pass that array into another function and print out the array. However, I get the following error: My code: This is my .c file: #include "multiplication.h" #include <stdio.h> int main(){ int num; int arr=multiplication(4)